<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Guorui Zhang</style></author><author><style face="normal" font="default" size="100%">Jia, Shangtong</style></author><author><style face="normal" font="default" size="100%">Gu, Ying</style></author><author><style face="normal" font="default" size="100%">Jianjun Chen*</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Brightening and Guiding Single-Photon Emission by Plasmonic Waveguide–Slit Structures on a Metallic Substrate</style></title><secondary-title><style face="normal" font="default" size="100%">Laser &amp;amp; Photonics Reviews</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">bright single-photon emission</style></keyword><keyword><style  face="normal" font="default" size="100%">efficient guiding</style></keyword><keyword><style  face="normal" font="default" size="100%">long propagation length</style></keyword><keyword><style  face="normal" font="default" size="100%">metallic substrates</style></keyword><keyword><style  face="normal" font="default" size="100%">purcell enhancement</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2019</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://onlinelibrary.wiley.com/doi/abs/10.1002/lpor.201900025</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">13</style></volume><pages><style face="normal" font="default" size="100%">1900025</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Abstract By designing a plasmonic waveguide–slit structure (a nanoslit etched in a silver nanowire) on a silver substrate, an ultrahigh Purcell factor and ultralarge figure of merit (FOM) are numerically predicted. Because of the large field enhancement (&amp;gt;150 times the incident field) and the ultrasmall optical volume (V&amp;nbsp;≈&amp;nbsp;2 × 10−5λ3) of the resonant mode in the metallic nanoslit, the simulations show that the Purcell factor in the system can reach up to FP&amp;nbsp;=&amp;nbsp;1.68&amp;nbsp;×&amp;nbsp;105, which is more than ten times the maximum Purcell factor in previous work (by placing metallic nanoparticles on a metal surface with a nanogap). Because of the utilization of a silver substrate rather than the common dielectric substrate, the mode cutoff of the surface plasmon polariton (SPP) waveguide mode is completely eliminated, which provides a large selection range of the nanowire radii to support the resonant mode in the nanoslit. Moreover, the SPP propagation length is significantly increased by more than 30 times. As a result, an ultralarge FOM of 1.40 × 107 is obtained, which is more than 80 times the maximum FOM in previous work where the metallic nanowire is placed on or surrounded by dielectric materials.</style></abstract></record></records></xml>